background measurement hangs when show_progress is set

[peendebak]

The background measurement process is not closed properly when show_progress is set.

xx=qcodes.Loop(stepvalues, progress_interval=2).loop(sweepvalues).each(keithley1.amplitude).run(background=True)
# wait for small amount of time
m=qcodes.get_bg(); print(m)

I can only reproduce this on windows with real instruments connected, I will not investigate this further The new multiprocessing architecture will probably fix this, or give insights into what is happening.

[giulioungaretti]

Possibly related to #175 .
Also what is hanging exactly ? this m=qcodes.get_bg(); ?

[peendebak]

@giulioungaretti The m=qcodes.get_bg() returns a Measurement, which means the background job is still running. When I insert a matplotlib.pyplot.close('all') at the end of the qcodes.Loop the issue seems to go away, but I have no idea why.

[giulioungaretti]

oh, what a clusterfuck, anyway. wontfix is the right label :D

[peendebak]

Closing the issue since multiprocessing was removed.